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Computer Science > Information Theory

arXiv:1407.2758 (cs)
[Submitted on 10 Jul 2014 (v1), last revised 13 Nov 2015 (this version, v3)]

Title:Mobility-Aware Uplink Interference Model for 5G Heterogeneous Networks

Authors:Yunquan Dong, Zhi Chen, Pingyi Fan, Khaled Ben Letaief
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Abstract:To meet the surging demand for throughput, 5G cellular networks need to be more heterogeneous and much denser, by deploying more and more small cells. In particular, the number of users in each small cell can change dramatically due to users' mobility, resulting in random and time varying uplink interference. This paper considers the uplink interference in a 5G heterogeneous network which is jointly covered by one macro cell and several small cells. Based on the Lévy flight moving model, a mobility-aware interference model is proposed to characterize the uplink interference from macro cell users to small cell users. In this model, the total uplink interference is characterized by its moment generating function, for both closed subscriber group (CSG) and open subscriber group (CSG) femto cells. In addition, the proposed interference model is a function of basic step length, which is a key velocity parameter of Lévy flights. It is shown by both theoretical analysis and simulation results that the proposed interference model provides a flexible way of evaluating the system performance in terms of success probability and average rate.
Comments: 14 pages,12 figures
Subjects: Information Theory (cs.IT)
Cite as: arXiv:1407.2758 [cs.IT]
  (or arXiv:1407.2758v3 [cs.IT] for this version)
  https://doi.org/10.48550/arXiv.1407.2758
Related DOI: https://doi.org/10.1109/TWC.2015.2500566

Submission history

From: Yunquan Dong [view email]
[v1] Thu, 10 Jul 2014 11:26:59 UTC (2,759 KB)
[v2] Thu, 17 Jul 2014 01:13:56 UTC (2,759 KB)
[v3] Fri, 13 Nov 2015 09:21:34 UTC (2,925 KB)
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